2051340/2

Technical product information
Topic
Market area
Brand
Transaction No.
Level
Status
Release date
Vibration / humming at idle - engine mount leak
Bentley: worldwide (2WBE),Hongkong-Macau (5HK)
Bentley
2051340/2
EH
Approval
New customer code
Object of complaint
Complaint type
Position
engine -> engine operation -> engine refinement noise, vibration -> hum
New workshop code
Object of complaint
Complaint type
Position
engine -> housing, crankshaft -> solenoid valve for electrohydraulic engine mounting functionality -> without function / defect left
engine -> housing, crankshaft -> solenoid valve for electrohydraulic engine mounting functionality -> without function / defect right
Vehicle data
Bentayga W12 only
Sales types
Type MY Brand Designation Engine code Gearbox code Final drive code
4V1* 2017 E
*
*
*
4V1* 2018 E
*
*
*
Documents
Document name
master.xml
Technical product information
Vibration / humming at idle - engine mount leak
Transaction No.: 2051340/2
Customer statement / workshop findings
Vehicle vibration / humming noise at idle
Technical background
Right hand Active Engine Mount (AEM) failed, oil may also be leaking from AEM. This failure mode is only seen on W12 engine installations and
is only apparent at idle.
Production change
Revised mounts developed
Measure
Figure 1 Active engine mount leaking oil
In the event of a failure / complaint as detailed then replace both AEM with service parts 4M0 199 255 BH and 4M0 199 256 BH
Follow the workshop manual procedure, Rep.Gr.10 Engine mounts – To remove and fit
Additionally changes must be made to the active engine mount control module, apply the instructions in TPI 2055760.
Parts information
Part number
Description
Quantity
4M0 199 255 BH
Active Engine Mount LH 1
4M0 199 256 BH
Active Engine Mount RH 1